District spokesman Joe Stevens said in a voicemail to district parents and staff members that members from the Board of Education, the Local Education Assocation of District 300 -- the Carpentersville area district's teachers union -- and a federal mediator met for a final time Monday.

"After the Board agreed to LEAD's latest proposal to further reduce class sizes at all grade levels and create class-size caps for middle and high school classes, the LEAD team increased its salary proposal by returning to an earlier salary request. At this point, the Board has met LEAD's expectations regarding class sizes, but we have not reached agreement on salaries," he said in the message.